US3792598A - Internal biasing assembly axially retaining couplings - Google Patents

Internal biasing assembly axially retaining couplings Download PDF

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Publication number
US3792598A
US3792598A US00324991A US3792598DA US3792598A US 3792598 A US3792598 A US 3792598A US 00324991 A US00324991 A US 00324991A US 3792598D A US3792598D A US 3792598DA US 3792598 A US3792598 A US 3792598A
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United States
Prior art keywords
push member
clip
push
forked
shaped
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Expired - Lifetime
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US00324991A
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English (en)
Inventor
M Orain
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Glaenzer Spicer SA
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Glaenzer Spicer SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/207—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially inwardly from the coupling part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
    • Y10S464/904—Homokinetic coupling
    • Y10S464/905—Torque transmitted via radially extending pin

Definitions

  • ABSTRACT An assembly for internal biasing and axially retaining [451 Feb. 19, 1974 a constant velocity universal joint of the type having a cup-shaped member, a forked member, spindles received in rollers for rolling and sliding in races formed between the prongs of the forked member, the spindles being associated with a knoblike portion.
  • the assembly assures a constant biasing force for maintaining the contact between the knoblike portion and the closed inner end wall of the forked member.
  • the biasing force is exerted by a coil spring arranged between the knoblike portion and a retaining clip adapted to be secured onto the prongs of the forked member for effectively joining the cup-shaped member to the forked member.
  • a push member is provided having a spherical cavity for contact with the knoblike portion at one end and a portion with an enlarged polygonal crosssection at its other end which extends through a corresponding hole in the retaining clip when the anus are being secured to the prongs and retracted when the other end portion is in alignment with the hole in the clip for guiding thereon.
  • the apices of the portion having the polygonal cross-section latch the push member relative to the clip, and may be released by pivoting the forked member relative to the cup-shaped member which causes cam surfaces on the push member to rotate the push member into or out of alignment with the corresponding hole in the clip.
  • fingers with latching teeth may be provided with an equal number of corresponding holes in the clip.
  • the present invention concerns an internal baising assembly axially retaining couplings.
  • the invention relates to assembling constant velocity universal joints with three rollers used for transmitting torque between two shafts at relative fixed or variable angles up to 45.
  • the axial joining of the forked member to the cup-shaped member has been an operation difficult to carry out. Indeed, the joining is ensured by means of a three-arm star-shaped part enclosed in the cup-shaped member. After the part is secured in position, it must apply a biasing force of a predetermined value in the axial direction so that there is no possible relative axial displacement between the forked member and the cup-shaped member under the effect of the various forces thereon regardless of the tolerances of the parts in use in the axial connection.
  • the assembly according to the invention for a conventional constant velocity universal joint of the type comprising a forked member fixed to one of theshafts to be coupled and having three angularly spaced prongs with linear roller races therebetween in which three rollers may slide and roll on three spindles or journals arranged in a star pattern about a knoblike portion with two spherical surfaces and fixed to a cup-shaped member on a second shaft, the assembly comprising a push member, a spherical concave cavity at one end of said push member having three radial cut-outs with V- shaped edges, said cavity bearing on one of the spherical surfaces of said knoblike portion, said push member guided in opening(s) in a star-shaped retaining clip with three arms which are to be secured to the prongs of the forked member, a spring or other resilient means interposed between said retaining clip and a shoulder on the underside of the portion forming the cavity on the push member, the push member under the action of a biasing force maintaining contact between the
  • Said other end portion of the push member acts as an automatic internal loading means and has an enlarged polygonal cross-section for latching onto the retaining clip which may be unlatched to free the biasing spring, whereas before the loading, the end of the push member projects beyond the retaining; clip to enable it to bear against a member of the coupling for clicking the retaining clip into place on the forked member, and after loading the end portion of the push member is retracted thereby avoiding any possiblity of contact with the member. 7
  • cross-section of said other end portion of the push member and the corresponding openings in the retaining clip may be polygonal e.g. triangular, square,
  • the latching is effected by three finger portions having notches adapted to hook onto the retaining clip.
  • the push member is provided with a three-arm central portion having teeth adapted to latch onto the retaining clip.
  • FIG. 1 shows an embodiment of a constant velocity universal joint with an assembly according to the invention shown in longitudinal section;
  • FIG. 2 illustrates additional means through which the kroblike portion is effectively brough into contact with the closed inner end wall of the forked member
  • FIG. 3 shows an end view of the coupling of FIG. 1, the cup-shaped member being removed
  • FIGS. 4 and 5 show two different polygonal sections for the other end portion of the push member
  • FIG. 6 illustrates the manner of securing the lugs of I the retaining member on the arms of the forked member
  • FIG. '7 shows the combination in the latched position of the push member
  • FIG. 8 shows the rotational movement to be effected in order to latch or unlatch the push member from the interior with the rollers and spindles removed;
  • FIG. 9 illustrates the position of the forked member for latching the push member
  • FIGS. and 11 illustrate an alternative embodiment
  • FIG. 12 shows an alternative member
  • FIG. 13 shows a further alternative embodiment of the push member
  • FIGS. 14 and 15 show the latching of the push memher on the retaining clip.
  • FIG. 1 illustrates in section an assembled constant velocity universal joint which allows a large angular displacement between the two shafts iit couples.
  • the joint comprises a forked member 1 with three angularly tion 9 of the closed inner end wall of the forked member 1 either directly or through the intermediary of a friction element 10 (FIG. 2) having a concave surface 11.
  • the push member 13 is provided with a portion 15 guided by an opening 16-cut in a resilient retaining clip 17 (FIG. 3) with three arms.
  • a resilient retaining clip 17 (FIG. 3) with three arms.
  • an enlarged end portion having the same crosssection as the opening 16 in the guiding zone so as to ensure the holding of the push member relative to the retaining clip while leaving it the freedom of sliding and oscillatory movement.
  • the opening 16 in the retaining clip 17 and the crosssection of the enlarged end portion of the push member may be triangular as shown in FIGS. 3 and 4, square, hexagonal, or circular with a toothed periphery as shown in FIG. 5. Any shape of cut-out or opening capable of effecting the guiding and latching of the retaining member may be adopted.
  • the securing of the retaining clip is effected by the lugs 18 forming a continuation of the arms of the retaining clip 17 and bent back parallel to the axis of the push member 13.
  • the lugs 18 of theresilient retaining clip 17 are designed to be anchored radially in slots 19 formed in each prong 2 of the forked member 1 (FIGS. 1 and 6).
  • a helical spring 20 or any other resilient means such as Belleville or corrugated washers are interposed and guided on the portion 15 of the push member.
  • the resilient means ensures the axial biasing against a knoblike portion 6 which is thereby held axially in position by the engagement of the spherical surface 7 with the flat surface 9 of the closed inner end wall of the forked member 1.
  • the wall of the cup-shaped member 21 and the forked member I prevent access which would otherwise enable the three lugs 18 of the retaining clip 17 to be grabbed simultaneously andheld with a force sufficient to overcome the force of the spring 20 and with a precision to enable the lugsto be secured in the slots 19 in the prongs 2 of the forked member 1 (FIG. 6).
  • the assembly functions as follows:
  • FIGS. 7 and 8 illustrate the constant velocity universal joint ready to be assembled.
  • the spring 20 is compressed as much as possible between the shoulder fonned at the underside of the cavity 12 and the retaining clip 17 by means of the angular displacement of the enlarged triangular portion of the element 15 relative to the hole 16 in the retaining clip (FIG. 8).
  • Abutments or latching teeth are formed by the apices 22 of the enlarged triangular end portion of the push member 13.
  • the end surface 23 of the end portion of the push member extends beyond the outer surface of the retaining clip 17 in this position.
  • the cup-shaped member 21 In order to easily assemble, it is merely necessary to arrange the cup-shaped member 21 with its opened end facing upwards, position the retaining clip 17 so that its lugs 18 are disposed facing the slots 19 in the prongs of the forked member 1 and then drive the forked member axially towards the cup-shaped member.
  • the end surface 23 of the push member 13 comes to bear against the closed inner end wall 24 of the cup-shaped member 21 and maintains the retaining clip 17 he means of the teeth apices 22.
  • the lugs 18 on the retaining clip slide along the conical surfaces 25 on the forked member 1 until the ends of the' three lugs18 of the retaining member click into position into the slots 19 as shown in FIG. 6.
  • the push member 13 and the retaining clip 17 may be considered as fixed relative to one another in view of the force the spring 20 exerts against each through the intermediary of the teeth or apices 22. Consequently, the outer edge surfaces 26 (FIG. 7) assure a guiding which favors the simultaneous clicking into place of the three lugs of the retaining clip.
  • the proper positioning of the retaining clip is thereby easily and securely effected with a minimum of axial force being exerted to overcome the resilient radial force of the lugs 19 of the retaining clip.
  • the shafts In order for the initial biasing force of the spring 20 to be exerted against the spherical surface 8, the shafts must be angularly displaced relative to each other while the spindles 5 or the rollers 4 bear against the surfaces of the radial V-shaped cut-outs 14 on the push-member 13. These surfaces act as camming surfaces and cause the push member 13 to be angularly displaced relative to the retaining clip 17 as shown in FIG. 9. Thus the teeth 22 (FIG. 8) move out of engagement, and the spring 20 expands until the push member 13 comes into abutting relationship with the spherical surface 8.
  • the portion 15 is simultaneously retracted leaving a space between its end surface 23 and the closed inner end wall of the cup-shaped member 21 thereby allowing the angular clearance of the constant velocity joint.
  • the knoblike portion 6 is thus axially maintained by the contact of its spherical surface 7 against the closed inner end wall 9 of the forked member 1 and by the force the spherical cavity 12 exerts against the spherical surface 8.
  • a no-clearance retaining assembly is thus effected having a predetermined biasing force independant of inaccuracies in the machining of the component parts.
  • the coupling is disassembled by freeing the lugs 18 from the slots 19 (FIG. 6) by means of a screwdriver.
  • the compressing of the spring 20 required for the reassembly of the joint is carried out with the forked member removed by pulling simultaneously on the three lugs 18 of the retaining member 17 outwardly along the axis of the cup-shaped member, then by slightly rotating which angularly displaces the portion 15 of the push member 13 relative to the opening in the retaining member as shown in dash-dotted .lines in FIG. 8. After removing the'pulling force the teeth maintain spring 20 in its compressed position by bearing against 3 the portion of the retaining clip defining the triangular hole 16.
  • the forked member is then re-assembled easily and without requiring the application of any force as de scribed above.
  • FIGS. and 11 illustrate an alternative embodiment in which the push member 27 instead of having portion (FIG. 1) is provided with three finger portions 28 with notched teeth 29 which are secured onto the retaining clip 31 during assembly and slidable after assembly in three holes 30 angularly spaced by 120 and formed in the retaining clip.
  • the finger portions 28 are generally rectangular in cross section and similar to the section of the openings 30 in the retaining clip as illustrated in FIGS. Ill, 14 and 15.
  • This embodiment functions in substantially the same way as described above.
  • FIG. 12 shows another alternative embodiment in which the push member 32 combines the features of the two preceding embodiments, that is, it comprises a guiding element 33 with a latching notched tooth 33a at its end and three arms 34. which are mainly intended to act as stable bearing supports against the closed inner end wall of the cup-shaped member while the retaining clip into position on the forked member.
  • FIG. 13 shows a further alternative embodiment in which the knoblike portion 6 supporting the spindles 5 is axially retained by annular discs or sleeves 7 and 7' with a planar internal surface 35 and spherical external surface 36.
  • the push member 37 has either three finger portions 28 with teeth 29, guiding element with teeth or the combination of three finger portions and a portion as in F lGS. l2 and 7 respectively.
  • a supplementary radial guiding is provided by the contact of the spherical surfaces 39 in the closed inner wall M) of the forked member.
  • the joint is assembled in exactly the same manner as the other embodiments.
  • the push member 13 and the discs 10 and 33 may be formed of tempered steel, plastic material, such as nylon, or any other suitable material.
  • the invention is applicable to the transmission for rotational movements and couplings.
  • An internal biasing assembly with automatic triggering for axially retaining a constant velocity universal joint of the type having a forked member adapted to be fixed to a first shaft and having three prongs with linear roller races therebetween, rollers adapted to roll in said roller races mounted to slide and rotate on spindles arranged in a star pattern about a knoblike central portion having two spherical surfaces, said spindles being mounted in the cup-shaped member, comprising a push member with a spherical cavity formed at one end defined between three radial cut-outs with V-shaped edges, said cavity beingcomplementary to one of said spherical surfaces on the knoblike central portion, a three arm star-shaped retaining clip, the arms of which being adapted to be secured to the prongs of the forked member, the other end of the push member remote from the cavity being adapted to be guided in a corresponding opening in the retaining clip, the crosssection of said other end portion being the same as the configuration of said corresponding opening, resilient means interposed between a
  • each of the prongs are provided with slots for receiving lugs on the end of the arms of the retaining clip.
  • An assembly according to claim ll further comprising three fingers provided on the push member and having latching teeth for latching onto portions defining additional openings in the clip member.
  • An internal biasing and retaining assembly for constant velocity universal joints of the tyep comprising a cup-shaped member, a forked member with three angularly spaced-apart prongs forming linear roller races therebetween, rollers adapted to roll in said roller races and mounted to slide and rotate on spindles arranged in a star pattern about a knoblike central portion having two spherical surfaces, said spindles'being mounted in the cup-shaped member, and a star-shaped retaining clip with flexible arms adapted to be secured to the prongs of the forked member, comprising a push member having a spherical cavity formed in one end complementary to one ofsaid spherical surfaces on the knoblike central portion and latching teeth remote from the cavity adapted to extend through at least one hole in said star-shaped member for latching engagement therewith, and resilient means arranged between said one end of the push member and the star-shaped member, said push member having a first position in which the latching teeth are latched on the star-shaped member and
  • latching teeth comprise apices of a closed geometrical figure forming the cross-section of the other end of the push member
  • the hole in the star-shaped retaining clip has the same configuration as said geometrical figure so that the other end may be guided in and pass through the hole when it is aligned therewith and latched thereon when the push member is angularly displaced relative to the hole in said retaining clip.
  • said resilient means is a coil spring, and wherein a portion of the push member intermediate its end portions acts as a guide for the coil spring.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Gear-Shifting Mechanisms (AREA)
US00324991A 1972-03-14 1973-01-19 Internal biasing assembly axially retaining couplings Expired - Lifetime US3792598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7208866A FR2176216A5 (fr) 1972-03-14 1972-03-14

Publications (1)

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US3792598A true US3792598A (en) 1974-02-19

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US00324991A Expired - Lifetime US3792598A (en) 1972-03-14 1973-01-19 Internal biasing assembly axially retaining couplings

Country Status (6)

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US (1) US3792598A (fr)
JP (1) JPS5222056B2 (fr)
DE (1) DE2309398C3 (fr)
FR (1) FR2176216A5 (fr)
GB (1) GB1375350A (fr)
IT (1) IT977023B (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835667A (en) * 1973-07-12 1974-09-17 Gen Motors Corp Double cardan universal joint with improved centering means
US3877251A (en) * 1973-06-15 1975-04-15 Wahlmark Systems Universal joint system
US3990267A (en) * 1975-01-17 1976-11-09 Glaenzer-Spicer Axially retained homokinetic coupling
US4033145A (en) * 1975-12-05 1977-07-05 Borg-Warner Corporation Constant angular velocity joint
US4036032A (en) * 1975-12-05 1977-07-19 Borg-Warner Corporation Universal joint
US4133189A (en) * 1977-05-18 1979-01-09 Rineer Arthur E Constant-velocity universal joint
US4145896A (en) * 1977-06-24 1979-03-27 United States Steel Corporation Constant velocity joint
US4229871A (en) * 1977-09-05 1980-10-28 Glaenzer Spicer Method for prestressing an axially retained homokinetic joint
US4255945A (en) * 1978-03-22 1981-03-17 Glaenzer Spicer Tripod homokinetic joints which have axial retaining means
US4336696A (en) * 1979-02-09 1982-06-29 Toyota Jidosha Kogyo Kabushiki Kaisha Tripod type constant velocity universal joint
US4747200A (en) * 1987-04-03 1988-05-31 Rockford Acromatic Products Co. Method of assembling a tripod universal joint
US5330388A (en) * 1992-01-27 1994-07-19 Eastman Kodak Company Shaft coupling utilizing tension springs and radially and axially projecting pins
US20100022314A1 (en) * 2006-10-12 2010-01-28 Cedric Gresse Homokinetic joint

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398924A1 (fr) * 1977-07-28 1979-02-23 Glaenzer Spicer Sa Joint homocinetique tripode a retenue axiale
CS194016B1 (en) * 1977-12-13 1979-11-30 Vladimir Pacejka Device for axially arresting inner shaft of cardan joint
FR2436282A1 (fr) * 1978-09-18 1980-04-11 Glaenzer Spicer Sa Tulipe perfectionnee pour joint a tripode et procede pour sa fabrication
FR2487022A1 (fr) * 1980-07-18 1982-01-22 Glaenzer Spicer Sa Joint homocinetique a tripode
JPH0612258Y2 (ja) * 1987-04-30 1994-03-30 本田技研工業株式会社 スライド式自在継手におけるインナ部材のストツパ装置
FR2632031B1 (fr) * 1988-05-26 1992-08-14 Glaenzer Spicer Sa Joint homocinetique a fixite axiale
FR2654480B1 (fr) * 1989-11-13 1992-03-06 Glaenzer Spicer Sa Joint homocinetique a tripode a retenue axiale.
FR2725484B1 (fr) * 1994-10-07 1996-12-27 Orain Michel Assemblage de piece principale de joint de transmission homocinetique, et joint de transmission homocinetique comportant un tel assemblage
KR100367564B1 (ko) * 1997-08-25 2003-01-14 오츠카 가가쿠 가부시키 가이샤 세파로스포린 결정 및 그의 제조방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2182455A (en) * 1937-10-28 1939-12-05 William F Smith Flexible coupling
FR1272530A (fr) * 1960-07-04 1961-09-29 Glaenzer Spicer Sa Joint universel pour transmission de mouvements rotatifs
US3151473A (en) * 1961-12-12 1964-10-06 Birfield Eng Ltd Universal joints
US3757534A (en) * 1971-04-06 1973-09-11 Glaenzer Spicer Sa Universal joints

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2182455A (en) * 1937-10-28 1939-12-05 William F Smith Flexible coupling
FR1272530A (fr) * 1960-07-04 1961-09-29 Glaenzer Spicer Sa Joint universel pour transmission de mouvements rotatifs
US3125870A (en) * 1960-07-04 1964-03-24 Universal joint for transmission of rotational movements
US3151473A (en) * 1961-12-12 1964-10-06 Birfield Eng Ltd Universal joints
US3757534A (en) * 1971-04-06 1973-09-11 Glaenzer Spicer Sa Universal joints

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877251A (en) * 1973-06-15 1975-04-15 Wahlmark Systems Universal joint system
US3835667A (en) * 1973-07-12 1974-09-17 Gen Motors Corp Double cardan universal joint with improved centering means
US3990267A (en) * 1975-01-17 1976-11-09 Glaenzer-Spicer Axially retained homokinetic coupling
US4033145A (en) * 1975-12-05 1977-07-05 Borg-Warner Corporation Constant angular velocity joint
US4036032A (en) * 1975-12-05 1977-07-19 Borg-Warner Corporation Universal joint
US4133189A (en) * 1977-05-18 1979-01-09 Rineer Arthur E Constant-velocity universal joint
US4145896A (en) * 1977-06-24 1979-03-27 United States Steel Corporation Constant velocity joint
US4229871A (en) * 1977-09-05 1980-10-28 Glaenzer Spicer Method for prestressing an axially retained homokinetic joint
US4339931A (en) * 1977-09-05 1982-07-20 Glaenzer Spicer Axially retained homokinetic joint
US4255945A (en) * 1978-03-22 1981-03-17 Glaenzer Spicer Tripod homokinetic joints which have axial retaining means
US4336696A (en) * 1979-02-09 1982-06-29 Toyota Jidosha Kogyo Kabushiki Kaisha Tripod type constant velocity universal joint
US4747200A (en) * 1987-04-03 1988-05-31 Rockford Acromatic Products Co. Method of assembling a tripod universal joint
US5330388A (en) * 1992-01-27 1994-07-19 Eastman Kodak Company Shaft coupling utilizing tension springs and radially and axially projecting pins
US20100022314A1 (en) * 2006-10-12 2010-01-28 Cedric Gresse Homokinetic joint
US8267801B2 (en) * 2006-10-12 2012-09-18 Gkn Driveline S.A. Homokinetic joint

Also Published As

Publication number Publication date
DE2309398B2 (de) 1975-01-30
JPS5222056B2 (fr) 1977-06-15
DE2309398A1 (de) 1973-09-27
FR2176216A5 (fr) 1973-10-26
GB1375350A (fr) 1974-11-27
DE2309398C3 (de) 1975-09-11
JPS49645A (fr) 1974-01-07
IT977023B (it) 1974-09-10

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